Ef 📐

I am working on a Cities Skylines 2 style road system in Unity where intersections are created dynamically without nodes.

@InfosReseaux @Elijah_Meeks From what I can see they in their segments they only encode connection data, how many lanes, and how do they connect in relation to the destination segment, but no information about actual coordinates, lane width or so.

@SandboxSpirit @Elijah_Meeks Openstreetmap and you aim at the same goal. OSM also tries to model the world as it appears. That's the point of the Lanes page I pointed to.

What is the best way to encode a road network as data? sandboxspirit.com/blog/data-stru…

@InfosReseaux @Elijah_Meeks I think OpenStreetMap and me try to solve different problems. OSM job is to answer "How do I get from one road's lane to another" while I am trying to answer: "How do I draw this road so it matches it's real world appearance while keeping the routing information"

@SandboxSpirit @Elijah_Meeks Interesting post, thank you for writing this. I'd like to read you thoughts about what openstreetmap provides in this matter. Lanes information is provided on road segments instead of nodes. Profiles solution you describes allows smoother transitions between them it seems.

@Douglance I think there is no single most accurate in all areas. There are bunch of professional grade level each specializing in it's own area. PPT Vissim is one of the best for intersection level, Aimsun Next for city level. But all of those have a CAD like programs UX.

@SandboxSpirit what is the most accurate road/traffic simulator that exists?

@redblobgames Thanks for your support!

I love articles like this!

@FabienWeibel If there is a game that has the sandbox spirit this is the one ❤️

This is an early preview of Sandcastle, a new game I am working on. It's a relaxing sandbox (literally) where all you have to do is build the nicest sand castle! 🏖️ You can wishlist it if you want -> store.steampowered.com/app/3216520/Sa… I'll post more dev logs here and on my discord

@Andersonmancini Thanks a lot! Glad you found it interesting

@SandboxSpirit Ohh god... this is absolutely gorgeous mate! Congratulations!

I am working on a Cities Skylines 2 style road system in Unity where intersections are created dynamically without nodes.

@AlanZucconi Thanks a lot. Really happy people find it interesting. Can't wait to share more in depths.

I'm officially obsessed with this! 🤩

@eric_khun Thanks! Yes, working on that. Can’t wait to share it

@SandboxSpirit Really enjoyed the writeup - the circle arc insight for preserving parallelism on offset is so clean. Looking forward to the technical deep dive!

@80Level ✌ I am the creator of this tool. Glad to see it featured

Have a look at Edd996's Cities: Skylines 2-style road system in Unity with fully dynamic intersections. It might be released as a free asset: 80.lv/articles/citie…

Since everything is either a line or a circular arc, intersection math is very cheap, and it runs well even on mobile

Curves are true circular arcs, not Bézier curves — closer to real civil-engineering